{
  "poll_interval": 30,
  "ac_path": "/sys/class/power_supply/AC0/online",
  "battery_path": "/sys/class/power_supply/BAT0",
  "warn_levels": [25, 20, 15],
  "shutdown_level": 10,
  "shutdown_grace": 8,
  "credentials_path": "/etc/van-battery/pushover.json"
}